05/08/2026
Same plant. Two completely different looks.
These are both Lindheimer’s Senna (Senna lindheimeriana).
During the day, the leaflets open wide to capture sunlight for photosynthesis. At night, they fold together in a natural “sleep” movement called nyctinasty.
This nightly behavior may help conserve moisture, protect delicate leaf tissue, and reduce nighttime insect feeding. It’s one of those small details that reminds us plants are far more dynamic than most people realize.
Native plants don’t just survive Texas. They’ve evolved remarkable adaptations to thrive here. What looks like two different plants is actually the same one, photographed just a few hours apart.
Why grow Lindheimer’s Senna?
* Pollinator favorite, attracting native bees and butterflies
* Bright yellow blooms from spring through fall
* Heat and drought tolerant once established
* Native to Texas and northern Mexico
Now available at Cultivar Source in 4-inch pots. A great choice for anyone looking to add a tough, beautiful Texas native to their landscape.